JP2004145682A - Card ejecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card ejecting device capable of easily ejecting a miniaturized card even when the insertion of the card is incomplete or the like. <P>SOLUTION: A guide face 13, a first rod 31 and a second rod of a frame 10 are formed like plates, the frame 100 has a guide plate 23 approximately parallel with the guide face 13, a cam member 40 formed on the front part of the first rod 31 is biased to the rear by a spring member 45, and a guide part 24 has a straight guide part 25 and a hook-like part 26 formed by a groove edge connected to the front part of the straight guide part 25. The cam member 40 has an engagement part 44 to be guided by the straight guide part 25 and the edge of the hook-like part 26 and the guide plate 23 is provided with a separation force application part 26C for applying contact pressure to the cam member 40 in a direction leaving from the surface of the guide plate 23 when the cam member 40 advances by depression force from the first rod 31 to the front. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a card ejection device that ejects a card inserted into an electronic device for replacement or the like.
[0002]
[Prior art]
As this type of card ejection device, for example, one disclosed in Japanese Patent Application Laid-Open No. H11-219756 is known.
[0003]
The device disclosed in Japanese Patent Application Laid-Open No. H11-219756 is a frame that guides and supports a card so that it can be inserted and withdrawn, a push rod that reciprocates on the side of the frame, and a discharge lever mechanism that discharges the card by receiving a pressing force from the push rod. And
[0004]
The push rod has a first rod that receives a pushing force from an operator, and a second rod that transmits this force to a discharge lever mechanism, and both rods are engaged via an intermediate member. The intermediate member is rotatably supported by the first rod, and rotates between a position where the intermediate member is engaged with the second rod and a position where the engagement is released. In the rotation of the intermediate member, one end of the pin member attached to the intermediate member is engaged with a heart cam groove formed in the frame, and circulates in the heart cam groove as the first rod moves back and forth. This is done by:
[0005]
The heart cam groove guides one end of the pin member so as to give a predetermined rotation to the intermediate member, and for this guide, circulation of one end of the pin member is performed in one direction, so that reverse circulation does not occur. An inclined surface or a step is formed on the bottom of the groove.
[0006]
By using such a heart cam groove, when the card is ejected, the intermediate member engages with the second rod to operate the ejection lever mechanism, and thereafter, the engagement of the intermediate member with the second rod is released. In the engaged state, the push button of the first rod protrudes from the front surface of the device, and in the released state, it is almost at the front position.
[0007]
[Patent Document]
JP-A-11-219756 (FIGS. 2 to 6)
[0008]
[Problems to be solved by the invention]
It is desired that the equipment provided with the card ejection device as described above be reduced in size at least. For this purpose, the card ejection device itself must be downsized.
[0009]
However, in the known device described above, the use of the heart cam mechanism makes it difficult to reduce the size thereof.
[0010]
Since the heart cam has a cam groove with a bottom and a step formed on the bottom of the groove, the depth of the cam groove, the step, and the thickness of the bottom wall are required, so that the dimension becomes large in the thickness direction. Further, the cam groove has a three-dimensionally complicated shape and is formed by molding a resin for that purpose. Therefore, since the strength of the material is low, it is unavoidable that the material is also thick in order to secure the strength.
[0011]
Further, this heart cam mechanism requires many components such as a pin member, an intermediate member, and an urging member in addition to the member having the cam groove. This means that not only the number of parts is large and a complicated groove is required to increase the cost but also the working space of these many parts is required, which also increases the size.
[0012]
In the known device, the card is firmly inserted to a predetermined position and connected to the connector at the back, so that the engagement position between the pin member and the heart cam groove causes the push button to retreat, that is, the push button is mounted on the device. Projecting from the front surface of the card to prepare for ejection of the card.
[0013]
However, if the card is not securely connected to the connector, e.g., if the card is inserted halfway, or if an incorrect card is incorrectly inserted and is not connected to the connector, do not remove the card. Although it should not be, the push button does not protrude from the front of the device, and is not in a state where it can be extracted. Even if the push button is pressed in this state, the discharge mechanism does not operate. Incidentally, in this position, the rear end of the card slightly protrudes from the front of the device, so that it is also difficult to pinch and eject the card with a finger.
[0014]
In view of such circumstances, the present invention provides a card ejection device that can be made easily and inexpensively, can be miniaturized, and can eject a card by a push button regardless of the position or presence of the card. The purpose is to do.
[0015]
[Means for Solving the Problems]
The card ejection device according to the present invention includes a frame having a support portion for guiding and supporting the card so that the card can be inserted and removed at a side portion of the card, and a push rod that reciprocates along a guide surface formed on an outer wall surface of the frame. An ejection lever mechanism for ejecting the card in the ejection direction by receiving a pressing force from the front end of the push rod in the card insertion direction, wherein the push rod moves forward for card ejection from an operator. A first rod for receiving the pushing force, and a second rod for transmitting the pushing force from the first rod to the ejection lever mechanism, wherein the first rod and the second rod are linked when the card is ejected. .
[0016]
In this card ejection device, in the present invention, the guide surface of the frame, the first rod, and the second rod are formed in a plate shape, and the frame has a guide plate that is substantially parallel to the guide surface, and the first rod, the first rod, and the second rod. The two rods have their respective plate surfaces disposed substantially parallel to the guide plate, and a front portion of the first rod facing the second rod has an engaging portion that engages with a guide portion formed on the guide plate. A cam member is provided, the cam member is urged rearward by a spring member, and the guide portion is a straight guide portion formed to extend forward as a groove edge or a side edge on the guide plate; A hook-like portion formed by a groove edge communicating with the front portion of the straight guide portion, and the cam member receives the urging force of the spring member or the above-mentioned pressing force applied thereto. And an engagement portion guided by an edge of the straight guide portion and the hook-shaped portion. When the engaging portion of the cam member is located within the hook-shaped portion, when the cam member moves forward by receiving a forward pressing force from the first rod, the cam member moves away from the surface of the guide plate. In order to apply a contact pressure to the cam member to release the engaging portion from the hook-like portion toward the frame, a release force applying portion is provided on the guide plate, or a pressure receiving slope is provided at the front end of the guide portion. It is characterized by having.
[0017]
As described above, in the present invention, the guide surface of the frame, each member of the first rod and the second rod are all made of a metal material in a plate shape, and their plate surfaces are arranged in parallel with each other. The cam means for linking the first rod and the second rod is also operated by the guide portion formed on the plate-like guide plate, so that the dimension of each member in the thickness direction is reduced and the same direction is established. In this case, the size of the arrangement range is also reduced, and as a result, miniaturization in the same direction becomes possible. Moreover, since each member is made of metal, its strength is high.
[0018]
Further, according to the present invention, when the first rod is pressed by the push button regardless of the position of the second rod, the engaging portion of the cam member engages with the detachment force applying portion of the guide plate, and the engaging portion of the cam member moves from the hook-like portion. When the button is released, the push button comes to the retracted position, that is, the ejectable position. Therefore, when the card is inserted halfway incompletely or an inappropriate card is inserted and is in a position where it is difficult to remove the card, simply pushing the push button causes the card to retreat greatly and protrude sufficiently from the front of the electronic device. Can be easily taken out.
[0019]
In the present invention, the hook-shaped portion has a trailing edge that engages with the engaging portion of the cam member so as to prevent the cam member from retreating, and the transition from the straight guide portion to the hook-shaped portion is as described above. Desirably, the edge is formed at an edge of a portion protruding forward from the rear edge. With this configuration, when the cam member is pushed forward by the first rod as much as possible and the engaging portion of the cam member engages with the hook-shaped portion, the cam member is returned by the rearward biasing force of the spring member when the pressing force is released. As a result, the engaging portion reliably engages the trailing edge portion, so that the engaging portion does not accidentally directly reach the releasing force applying portion.
[0020]
It is preferable that the rear edge of the hook-shaped portion has a tapered surface that moves the engaging portion in a direction to deepen the engagement with the rear edge by the biasing force of the spring member received by the cam member. With this arrangement, as the cam member retreats at the hook-like portion under the urging force of the spring member, the engaging portion increases the amount of engagement along the tapered surface to ensure the engagement.
[0021]
In the present invention, the detachment force applying portion can be formed by a surface of an inclined portion cut and raised from the plate surface at the front edge of the hook-like portion of the guide plate. In such a form, processing becomes extremely simple.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of each member showing one embodiment of the present invention, and FIG. 2 is an assembled perspective view.
[0023]
In FIG. 1, reference numeral 10 denotes a frame for supporting a card C such as a PC card so as to be able to reciprocate in the direction of arrow X, and has supporting portions 11 and 12 for supporting the card. The frame 10 is formed by stamping and bending a metal plate material, and has a shape having “U” shaped support portions 11 and 12 on both sides of the flat plate portion 10A as a whole. The supports 11 and 12 support both sides of the card C by holding them and guide the card C in the X direction.
[0024]
Ground contact pieces 15 and 16 are provided at the rear portions (left portions in the figure) of the side walls 13 and 14 of the support portions 11 and 12. The ground contact pieces 15 and 16 are formed as arm-shaped elastic flexible pieces by forming “U” -shaped grooves in the side wall portions 11 and 12. The ground contact pieces 15 and 16 have inwardly bent contact portions 15A and 16A, respectively, and are configured to elastically contact a ground portion formed on a side surface of the card C when the card is inserted. At the lower ends of the side wall portions 11 and 12, an attachment portion 11A protruding in a wing shape is provided.
[0025]
In the present embodiment, one of the two support portions 11 and 12 is provided with an element for ejecting a card.
[0026]
First, on the upper and lower edges of the outer surface of the side wall portion 13 of the support portion 11, inverted U-shaped guide pieces 17, 18 partially cut and raised and bent and formed, and a U-shaped guide piece 19, 20, 21 are provided, respectively. These guide pieces 17 to 21 are for guiding and supporting push rods (first rod and second rod) to be described later. Another guide piece 22 is provided in an inverted U-shape slightly before and slightly above the guide piece 21 located at the front lower edge of the side wall portion 13. Of the guide pieces 17 to 22, the guide piece 17 located at the rear part of the upper part of the side wall part 13 has a locking part 17A extending outward at its end, and a locking groove 17B at the rear part. Is formed.
[0027]
An integrally formed guide plate 23 extends from the lower edge of the side wall portion 13 of the frame 10 in the front-rear direction (between the guide pieces 17, 20 and the guide piece 22). The guide plate 23 is provided in parallel with the side wall 13 of the frame 10, and has a window-shaped guide 24 as a guide in the center. The guide portion 24 has a straight guide portion 25 extending as a straight groove forward and backward, and a groove-like hook-like portion 26 communicating with the front and rear portions and formed upward. As shown in FIG. 4, the hook-like portion 26 has a portion 26A protruding forward at a boundary portion with the straight guide portion 25, and is located behind the portion 26A (leftward in FIG. 4). In the area (1), an engaging portion of a cam member described later is engaged. The rear edge 26B of the hook 26 forms a tapered surface that is inclined rearward toward the outside of the guide plate 23. As shown in FIG. 4, the upper edge of the hook portion 26 has a step behind the front edge of the hook portion 26 in the front-rear direction. Is provided. The detaching force applying portion 26C is formed as an inclined surface at the front edge so as to face the rear edge 26B in the front-rear direction. The inclined surface is formed by cutting and raising the guide plate 23 obliquely outward at the position of the step portion, and is inclined in the same direction as the inclination of the rear edge portion 26B. An abutment piece 27 is provided on the upper rear portion of the guide plate 23, and its front edge is a downwardly tapered abutment surface 27A. Further, an introduction surface 23A that is inclined so as to open outward is provided at the front end of the guide plate 23.
[0028]
The push rod 30 has a first rod 31 and a second rod 32, both of which are made of a metal material and have a plate shape. The first rod 31 is configured such that a push button 33 is fixed to a rear portion, a circular concave support groove 34 is formed at a front end, and a bent portion of the ground contact piece 15 described above is formed at an intermediate portion near the rear portion. Is formed.
[0029]
Next, the second rod 32 has a pressing engagement groove 36 formed at the front end, and a pressure-receiving arm portion 37 is provided at the rear portion so as to extend rearward. The pressed arm portion 37 is located in the height direction corresponding to the straight guide portion 25 of the guide portion 24. The rear end face of the pressure-receiving arm 37 is a pressure receiving portion 37A pressed by the cam member. The distal end of an eject lever 39 of a card ejection lever mechanism is engaged with the pressing engagement groove 36 of the second rod 32, and receives the pressing force from the second rod 32 to extend the eject lever 37. The lever mechanism (not shown) ejects the card backward by the rotation.
[0030]
A cam member 40 is provided between the first rod 31 and the second rod 32. As shown in FIG. 3, the cam member 40 has a substantially circular receiving portion 42 and a retaining groove 43A formed at the rear of a flat plate-shaped main body 41, and a laterally extending retaining piece. 43 are provided. In addition, an engagement portion 44 which is partially cut and raised and bent outward is provided on the lower edge of the front portion of the main body portion 41. Further, a pressure receiving inclined surface 44A corresponding to the inclination of the trailing edge portion 26 is formed on the front surface thereof.
[0031]
The first rod 31, the second rod 32 and the cam member 40 are assembled as follows.
[0032]
As shown in FIG. 2, the first rod 31 to which the push button 33 is fixed at the rear end is housed in the groove of the guide pieces 17, 19, 20, and along the outer surface of the side wall 13 of the frame 10 at the upper and lower edges. Supported. The received portion 42 of the cam member 40 is accommodated in the substantially circular support groove 34 of the first rod 31, and the cam member 40 is rotatable up and down on the circular peripheral surface. . The cam member 40 is urged rearward by a coil spring 45 while being rotatably supported by the first rod 31. One end 45A of the coil spring 45 is hung on the locking groove 43A of the cam member 40, and the other end 45B is hung on the locking groove 17B of the guide piece 17 of the frame. 2, the engaging portion 44 of the cam member 40 located inside the guide plate 23 is engaged with the straight guide portion 25 of the guide plate 23. The contact portion 15A of the ground contact piece 15 of the frame is located in the window 35 of the first rod 31.
[0033]
The second rod 32 is guided and supported by guide pieces 18, 21 and 22 at a position along the outer surface of the side wall 13 of the frame 10. In this case, the guide pieces 18 and 21 are supported by the upper and lower edges of the second rod 32, respectively, while the guide piece 22 supports the upper edge of the pressed arm 37. At this time, since the first rod 31, the second rod 32, and the plate-shaped portion of the main body 41 of the cam member are located on the same plane, the size is reduced in the plate thickness direction. Further, the connecting portion between the guide plate 23 and the frame 10 may be used as a guide support for the first rod and the second rod.
[0034]
The axis of the coil spring 45 stretched between the cam member 40 and the guide piece 17 of the frame 10 is positioned above the guide groove 24, and the frame spring is positioned higher than the engaging groove 43 </ b> A of the cam member 40. The engaging groove 17B of the ten guide pieces 17 is located rearward. As a result, tension is applied to the latch groove 43A at the rear of the cam member 40, and a rotational force is generated with the received portion 42 as a fulcrum, and an outward force is applied to the engaging portion 44 located at the front. Therefore, the coil spring 45 not only urges the cam member 40 rearward but also urges the engaging portion 44 of the cam member 40 against the inner surface of the guide plate 23 and urges it upward. I have.
[0035]
The operation of the apparatus of this embodiment will be described with reference to FIGS. In FIGS. 5 and 6, (1) A and (1) B and below show the operation order, where A is a cross section of the guide plate in the guide groove, and B is a diagram viewed from the side with respect to the guide plate. Is shown. The cross section is indicated by the height at which the engaging portion 44 of the cam member 40 is located.
{Circle around (1)} In FIGS. 5A and 5B, the card is completely inserted and is connected to the connector. The cam member 40 is pulled by the coil spring 45 and comes to a position where it comes into contact with the contact surface 27A of the guide plate 23, that is, the rearmost position. In this state, the push button 33 provided at the rear end of the first rod 31 is provided. Protrudes from the front panel of the device. The engaging portion 44 of the cam member 40 supported by the front portion of the first rod 31 is located at the rearmost position within the straight guide portion 25 of the guide groove 24 formed in the guide plate 23, The rear end of the pressed arm 37 of the second rod 32 is opposed at a close position.
(2) Next, the push button 33 is pushed against the urging force of the coil spring 45 to eject the card, and the first rod 31 is pushed forward. In this step, the engaging portion 44 of the cam member 40 moves the inside of the straight guide portion 25 from the position in the state of FIG. 5 (1) A, B through FIG. 5 (2) A, B and FIG. , B. By the forward movement of the engaging portion 44, the second rod 32 is driven forward by receiving a pressing force from the cam member 40 at the pressed arm 37 thereof. With this advance, the eject lever 39 seen in FIG. 1 is pushed at the end, and levers the card to eject the card backward, bringing the card to a releasable position released from the connector. Thus, the card is removed. The advance of the first rod 31 is regulated by the frame 10 (not shown), and the engagement portion 44 of the cam member 40 does not contact the front edge of the hook-shaped portion 26 continuing from the straight guide portion 25. Absent.
{Circle around (3)} Since the cam member 40 is urged rearward and upward by the coil spring 45, when the engaging portion 44 reaches the foremost position of the straight guide portion 25, FIG. As shown in FIG. 5B, the protruding portion 26A wraps around and enters the hook-like portion 26, and at the next moment, retreats as shown in FIGS. At this time, since the trailing edge portion 26B has a tapered surface, the engaging portion 44 is guided by the tapered surface when retreating to deepen the engagement with the trailing edge portion 26B. Thus, this engaged state is maintained. In this state, the push button 33 provided at the rear end of the first rod is not at a position where it protrudes from the panel of the device.
{Circle around (4)} When the push button 33 is pressed to eject the card and the first rod 31 and the cam member 40 move forward, as shown in FIGS. The slope 44A slides on the inclined portion of the releasing force applying portion 26C of the hook portion 26 formed on the guide plate 23 and moves forward, and the locking portion 44 is moved from the guide portion 24, that is, from the hook portion 26. It is extruded inward at right angles to the plate thickness so as to float. As described above, since the cam member 40 is urged upward from the coil spring 45 and in the direction of the plate surface of the guide member and rearward, the engaging portion 44 becomes the hook-like portion 26. When it comes off, it slides on the inner plate surface of the guide member at a position above the hook-like portion 26 and moves rearward through the states of FIGS. Meanwhile, the cam member 40 has no relation to the second rod 32 at all. Therefore, the second rod 32 does not change from the positions shown in FIGS. At this time, since the window 35 provided in the first rod 31 has a long shape in the front-rear direction, the first rod 31 does not interfere with the ground contact pieces 15 and 16.
{Circle around (5)} When the cam member 40 further retreats under the urging force of the coil spring 45, the cam member contacts the inclined contact surface 27A of the guide plate 23 and rotates downward. As a result, the engaging portion 44 moves downward while sliding on the plate surface of the guide plate 23 and enters the rear portion of the straight guide portion 25 of the guide portion 24. That is, the state returns to the state shown in FIG. Thus, the card ejection operation is ready again.
{Circle around (6)} In the device of the present embodiment, when the card is not completely inserted and connected, for example, the card is inserted in an unconnected state halfway, or a card for another device (mis- When a card is inserted, there is a request to eject the card from a position where the card is not connected to the connector. At this time, the rear end of the card slightly protrudes from the front panel of the device, so it is difficult to remove the card with a finger. In such a case, if the push button 33 is pressed in the manner of the above (4), the first rod 31 and the cam member 40 operate and retreat regardless of the position of the second rod 32 to remove the card as shown in (5). You can run backwards and easily extract it with your finger.
[0036]
Next, another embodiment of the present invention will be described with reference to FIG.
[0037]
Although the cam member 40 is formed separately from the push rod in the previous embodiment, the present embodiment is characterized in that the cam member 40 is formed integrally with the first rod 31 of the push rod. In the example of FIG. 7, the first rod 31 and the cam member 40 are integrally connected by an elastic arm 46 instead of the coil spring in the previous embodiment. In this case, by setting the unloaded position of the locking portion 44 of the cam member 40 above and outside the guide portion, the elastic arm portion 46 has elasticity in two directions perpendicular to its longitudinal direction. And an urging force is applied to the engaging portion 44 in that direction. In the previous embodiment, the coil spring also applied the urging force to the cam member 40 in three directions. However, in the present embodiment, since the first rod 31 and the cam member 40 are integrated by the elastic arm 46, No urging force is required for the upper, upper and guide plate surfaces.
[0038]
FIG. 8 shows still another embodiment of the present invention. In the embodiment shown in FIGS. 1 to 6, the guide plate is formed with a slit-shaped guide portion, but in the present embodiment, the guide plate 23 has a guide portion 24A corresponding to the guide portion 24 in FIG. Is formed. The guide plate 23 is connected to the upper edge of the frame 1 at the locking portion 10B. The guide portion 24A has a straight guide portion 25A corresponding to the straight guide portion 25 in FIG. 1 and a hook portion 26D corresponding to the hook portion 26 in FIG.
[0039]
Further, in the present embodiment, the cam member 40 has the guide auxiliary portion 47 formed on the lower edge of the hook piece 43, and engages with the upper guide edge 28 formed on the upper edge of the guide plate 23. ing. Further, a tapered contact surface 27A similar to FIG. 1 is formed on the lower edge of the contact piece 27 of the guide plate 23.
[0040]
When the cam member 40 is pushed forward by the first rod, the engaging portion 44 moves along the straight guide portion 25A and reaches the hook-like portion 26D. At this time, the guide assisting portion 47 advances along with the engaging portion 44 along the upper guide edge 28. The cam member 40 is urged by a coil spring similar to that of FIG. 1, and when the engaging portion 44 advances and reaches the hook-like portion 26D, the extending direction of the guide assisting portion (the plate of the guide plate) The engagement portion 44 enters the hook-like portion 26 by rotating counterclockwise about the axis (thickness direction). Thus, the engaging portion 44 engages with the hook-shaped portion 26 by performing the above-mentioned operation (3), and operates according to (4) and (5) when disengaging.
[0041]
The present invention is not limited to the illustrated embodiment but can be modified. For example, it is possible to detach by simply providing one of the detachment force applying part 26C and the pressure receiving slope 44A, but it is preferable to have both. In FIG. 1, the engaging portion of the cam member detached from the guide portion slides on the plate surface of the guide plate and retreats. At this time, the engaging portion engages with another groove and retreats. You may do so. Therefore, the engaging portion moves from the guide portion to another groove by the action of the separating force applying portion, and returns to the guide portion from the other groove by the action of the contact surface. Further, the guide plate may be attached separately from the frame.
[0042]
【The invention's effect】
As described above, in the present invention, the push rod for driving the ejection lever mechanism for ejecting the card is constituted by the first rod and the second rod, and both rods are operated via the cam means, and these are operated. Since the guide plates having guide portions for guiding the members and the cam means are all formed in a plate shape and are arranged so that the plate surfaces are parallel to each other, they can be arranged close to each other, As a result, it greatly contributes to miniaturization. Furthermore, when made from a metal plate, the plate thickness can be reduced while maintaining high strength, and the size can be further reduced. In addition, since it can be made by a simple press working including the guide plate, the working cost can be reduced and the number of parts can be reduced due to the simple structure. Further, even if the ground contact is provided on the guide surface of the frame, the guide surface and the push lot can be provided close to each other, which contributes to downsizing.
[0043]
Further, in the present invention, regardless of the inserted state of the card, that is, whether the card is completely incompletely inserted or the card is not present, the push button is located at a position where the card can be ejected, and if the insertion is incomplete and the rear end of the card protrudes from the front of the device. Even if the amount is small, the card can be sufficiently protruded by pressing the push button, and the card can be easily removed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a device according to an embodiment of the present invention.
FIG. 2 is an assembled perspective view of the apparatus of FIG. 1;
FIG. 3 is an enlarged perspective view of a cam member in FIG.
FIG. 4 is an enlarged perspective view of a guide plate in FIG.
FIGS. 5A and 5B show the operation at the time of card ejection in the order of (1) to (4), where A is a cross-sectional view of the guide portion of the guide plate and B is a side view.
FIGS. 6A and 6B show the operation at the time of card insertion in the order of (1) to (3), where A is a cross-sectional view of the guide portion of the guide plate and B is a side view.
FIG. 7 is a perspective view showing another embodiment of the present invention.
FIG. 8 is a perspective view showing still another embodiment of the present invention.
[Explanation of symbols]
10 Frame 11 Support part 13 Guide surface (side wall part)
23 Guide plate 24 Guide part 25 Straight guide part 26 Hook-shaped part 26C Release force applying part 30 Push rod 31 First rod 32 Second rod 40 Cam member 44 Engaging part 44A Pressure receiving slope 45 Spring member

Claims (4)

A frame having a supporting portion for guiding and supporting the card so that the card can be inserted and withdrawn at a side portion of the card; a push rod reciprocating along a guide surface formed on an outer wall surface of the frame; A ejection lever mechanism for ejecting the card in the ejection direction by receiving a pressing force from the unit, wherein the push rod receives a forward pushing force for ejecting the card from the operator; A second rod for transmitting the pushing force from the first rod to a discharge lever mechanism, wherein the first rod and the second rod are linked at the time of discharging the card, wherein the guide surface of the frame, the first rod, The second rod is formed in a plate shape, the frame has a guide plate substantially parallel to the guide surface, the first rod, the second rod, each plate surface is disposed substantially parallel to the guide plate. ,second A cam member having an engaging portion that engages with a guide portion formed on a guide plate is provided at a front portion of the first rod facing the pad, and the cam member is urged rearward by a spring member. The guide portion includes a straight guide portion formed on the guide plate so as to extend forward as a groove edge or a side edge, and a hook-shaped portion formed by a groove edge communicating with a front portion of the straight guide portion. When the cam member receives the urging force of the spring member or the pressing force applied thereto, the cam member engages the straight guide portion and the engagement portion guided by the edge of the hook-shaped portion. The cam member moves away from the surface of the guide plate when the cam member moves forward by receiving a forward pressing force from the first rod when the engaging portion of the cam member is located in the hook-shaped portion. In order to apply contact pressure to the cam member in the direction Applying unit card discharge apparatus characterized by that provided in the guide plate, or the pressure slope is provided in the guide portion front end. The hook portion has a trailing edge that engages with the engaging portion of the cam member so as to prevent the cam member from retracting, and the transition from the straight guide portion to the hook portion is greater than the trailing edge portion. 2. The card ejection device according to claim 1, wherein the card ejection device is also formed by an edge of a portion protruding forward. The rear edge of the hook portion has a tapered surface that moves the engaging portion in a direction to deepen the engagement with the rear edge by a biasing force of a spring member received by the cam member. The card ejection device according to claim 2. The card ejection device according to claim 1, wherein the detachment force applying portion is formed by a surface of an inclined portion cut and raised from a plate surface at a front edge of the hook-shaped portion of the guide plate.

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